Analysis

  • max time kernel
    142s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    19/11/2020, 06:18

General

  • Target
    82a0a0bd6084c5a28081310e75e7f608.exe
  • Size 1.5MB
  • Sample201119-chjs7k18ca
  • SHA256 bad1feef0055835db4f894b4885b48d596788458bc9095d4c0af9ec36a97077d
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • raccoon

Botnet
  • 5e4db353b88c002ba6466c06437973619aad03b3

Attributes
  • url4cnc

    https://telete.in/brikitiki

rc4.plain
rc4.plain

Extracted

Family
  • azorult

C2
  • http://195.245.112.115/index.php

Extracted

Family
  • oski

C2
  • taenaiaa.ac.ug

Extracted

Family
  • asyncrat

Version
  • 0.5.7B

C2
  • agentttt.ac.ug:6970

  • agentpurple.ac.ug:6970

Mutex
  • AsyncMutex_6SI8OkPnk

Attributes
  • aes_key

    16dw6EDbQkYZp5BTs7cmLUicVtOA4UQr

  • anti_detection

    false

  • autorun

    false

  • bdos

    false

  • delay

    Default

  • host

    agentttt.ac.ug,agentpurple.ac.ug

  • hwid

    3

  • install_file

  • install_folder

    %AppData%

  • mutex

    AsyncMutex_6SI8OkPnk

  • pastebin_config

    null

  • port

    6970

  • version

    0.5.7B

aes.plain

Extracted

Family
  • remcos

C2
  • taenaia.ac.ug:6969

  • agentpapple.ac.ug:6969

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Contains code to disable Windows Defender 8 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Oski

    Oski is an infostealer targeting browser data, crypto wallets.

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Async RAT payload 4 IoCs
  • ModiLoader First Stage 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 11 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 27 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 2 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops desktop.ini file(s) 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
  • Suspicious use of SetThreadContext 7 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 1 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\82a0a0bd6084c5a28081310e75e7f608.exe
    "C:\Users\Admin\AppData\Local\Temp\82a0a0bd6084c5a28081310e75e7f608.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1892
    • C:\Users\Admin\AppData\Local\Temp\FGbfttrev.exe
      "C:\Users\Admin\AppData\Local\Temp\FGbfttrev.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1376
      • C:\Users\Admin\AppData\Local\Temp\FGbfttrev.exe
        "C:\Users\Admin\AppData\Local\Temp\FGbfttrev.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        PID:1096
    • C:\Users\Admin\AppData\Local\Temp\FDvbcgfert.exe
      "C:\Users\Admin\AppData\Local\Temp\FDvbcgfert.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1796
      • C:\Users\Admin\AppData\Local\Temp\FDvbcgfert.exe
        "C:\Users\Admin\AppData\Local\Temp\FDvbcgfert.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Checks processor information in registry
        • Suspicious use of WriteProcessMemory
        PID:1492
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c taskkill /pid 1492 & erase C:\Users\Admin\AppData\Local\Temp\FDvbcgfert.exe & RD /S /Q C:\\ProgramData\\981304239138134\\* & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:968
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /pid 1492
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:1196
    • C:\Users\Admin\AppData\Local\Temp\82a0a0bd6084c5a28081310e75e7f608.exe
      "C:\Users\Admin\AppData\Local\Temp\82a0a0bd6084c5a28081310e75e7f608.exe"
      2⤵
      • Loads dropped DLL
      • Drops desktop.ini file(s)
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:1724
      • C:\Users\Admin\AppData\Local\Temp\Mi8lO2aXrg.exe
        "C:\Users\Admin\AppData\Local\Temp\Mi8lO2aXrg.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        PID:1544
        • C:\Users\Admin\AppData\Local\Temp\Mi8lO2aXrg.exe
          "C:\Users\Admin\AppData\Local\Temp\Mi8lO2aXrg.exe"
          4⤵
          • Executes dropped EXE
          PID:340
      • C:\Users\Admin\AppData\Local\Temp\DcGOv8xxtn.exe
        "C:\Users\Admin\AppData\Local\Temp\DcGOv8xxtn.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • Modifies system certificate store
        PID:1780
        • C:\Windows\SysWOW64\svchost.exe
          "C:\Windows\System32\svchost.exe"
          4⤵
            PID:1816
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ""C:\Users\Public\BDOfFtso.bat" "
              5⤵
                PID:2396
            • C:\Program Files (x86)\internet explorer\ieinstal.exe
              "C:\Program Files (x86)\internet explorer\ieinstal.exe"
              4⤵
                PID:2356
            • C:\Users\Admin\AppData\Local\Temp\OHGleNKBLq.exe
              "C:\Users\Admin\AppData\Local\Temp\OHGleNKBLq.exe"
              3⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of SetThreadContext
              • Suspicious use of AdjustPrivilegeToken
              PID:1080
              • C:\Users\Admin\AppData\Local\Temp\OHGleNKBLq.exe
                "C:\Users\Admin\AppData\Local\Temp\OHGleNKBLq.exe"
                4⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of SetWindowsHookEx
                PID:1692
                • \??\c:\windows\SysWOW64\cmstp.exe
                  "c:\windows\system32\cmstp.exe" /au C:\Windows\temp\pvsctpdx.inf
                  5⤵
                    PID:1100
              • C:\Users\Admin\AppData\Local\Temp\o1FTkfkvPj.exe
                "C:\Users\Admin\AppData\Local\Temp\o1FTkfkvPj.exe"
                3⤵
                • Executes dropped EXE
                • Loads dropped DLL
                • Suspicious use of SetThreadContext
                • Suspicious use of AdjustPrivilegeToken
                PID:1816
                • C:\Users\Admin\AppData\Local\Temp\o1FTkfkvPj.exe
                  "C:\Users\Admin\AppData\Local\Temp\o1FTkfkvPj.exe"
                  4⤵
                  • Executes dropped EXE
                  • Windows security modification
                  PID:1300
                  • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                    "powershell" Get-MpPreference -verbose
                    5⤵
                    • Suspicious use of AdjustPrivilegeToken
                    PID:1104
              • C:\Windows\SysWOW64\cmd.exe
                cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\82a0a0bd6084c5a28081310e75e7f608.exe"
                3⤵
                • Deletes itself
                • Suspicious use of WriteProcessMemory
                PID:1220
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /T 10 /NOBREAK
                  4⤵
                  • Delays execution with timeout.exe
                  PID:1196

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                memory/340-82-0x0000000000400000-0x0000000000412000-memory.dmp

                memory/340-91-0x0000000000400000-0x0000000000412000-memory.dmp

                memory/340-89-0x0000000000400000-0x0000000000412000-memory.dmp

                memory/340-95-0x0000000073470000-0x0000000073B5E000-memory.dmp

                memory/1020-23-0x000007FEF7730000-0x000007FEF79AA000-memory.dmp

                memory/1080-60-0x0000000073470000-0x0000000073B5E000-memory.dmp

                memory/1080-61-0x0000000000820000-0x0000000000821000-memory.dmp

                memory/1080-74-0x0000000000530000-0x000000000056D000-memory.dmp

                memory/1096-22-0x0000000000400000-0x0000000000424000-memory.dmp

                memory/1096-19-0x0000000000400000-0x0000000000424000-memory.dmp

                memory/1104-109-0x0000000000B90000-0x0000000000B91000-memory.dmp

                memory/1104-107-0x0000000073470000-0x0000000073B5E000-memory.dmp

                memory/1104-112-0x00000000048A0000-0x00000000048A1000-memory.dmp

                memory/1104-129-0x0000000006250000-0x0000000006251000-memory.dmp

                memory/1104-110-0x0000000004940000-0x0000000004941000-memory.dmp

                memory/1104-116-0x0000000005700000-0x0000000005701000-memory.dmp

                memory/1104-145-0x00000000063A0000-0x00000000063A1000-memory.dmp

                memory/1104-130-0x0000000005660000-0x0000000005661000-memory.dmp

                memory/1104-121-0x00000000057A0000-0x00000000057A1000-memory.dmp

                memory/1104-122-0x00000000062F0000-0x00000000062F1000-memory.dmp

                memory/1104-144-0x0000000006390000-0x0000000006391000-memory.dmp

                memory/1104-111-0x0000000002550000-0x0000000002551000-memory.dmp

                memory/1300-81-0x0000000000400000-0x0000000000408000-memory.dmp

                memory/1300-96-0x0000000073470000-0x0000000073B5E000-memory.dmp

                memory/1300-87-0x0000000000400000-0x0000000000408000-memory.dmp

                memory/1300-92-0x0000000000400000-0x0000000000408000-memory.dmp

                memory/1492-29-0x0000000000400000-0x0000000000438000-memory.dmp

                memory/1492-26-0x0000000000400000-0x0000000000438000-memory.dmp

                memory/1544-50-0x0000000000210000-0x0000000000211000-memory.dmp

                memory/1544-49-0x0000000073470000-0x0000000073B5E000-memory.dmp

                memory/1544-73-0x0000000000720000-0x0000000000759000-memory.dmp

                memory/1692-99-0x0000000073470000-0x0000000073B5E000-memory.dmp

                memory/1692-85-0x0000000000400000-0x000000000040C000-memory.dmp

                memory/1692-97-0x0000000000400000-0x000000000040C000-memory.dmp

                memory/1692-94-0x0000000000400000-0x000000000040C000-memory.dmp

                memory/1724-16-0x0000000000400000-0x0000000000497000-memory.dmp

                memory/1724-13-0x0000000000400000-0x0000000000497000-memory.dmp

                memory/1780-113-0x0000000002230000-0x000000000228C000-memory.dmp

                memory/1780-146-0x0000000004AD0000-0x0000000004B21000-memory.dmp

                memory/1780-394-0x0000000050480000-0x000000005049A000-memory.dmp

                memory/1816-72-0x00000000020F0000-0x000000000212C000-memory.dmp

                memory/1816-148-0x00000000000A0000-0x00000000000A1000-memory.dmp

                memory/1816-150-0x0000000000120000-0x0000000000121000-memory.dmp

                memory/1816-69-0x0000000000220000-0x0000000000221000-memory.dmp

                memory/1816-75-0x0000000000660000-0x0000000000676000-memory.dmp

                memory/1816-68-0x0000000073470000-0x0000000073B5E000-memory.dmp

                memory/1816-395-0x0000000003D30000-0x0000000003D31000-memory.dmp

                memory/2356-398-0x0000000000400000-0x0000000000418000-memory.dmp

                memory/2356-400-0x0000000000400000-0x0000000000418000-memory.dmp